Compiler Supports and Optimizations for PAC VLIW DSP Processors

Abstract. Compiler is substantially regarded as the most essential component in the software toolchain to promote a successful processor design. This paper describes our preliminary employment of the Open Research Compiler (ORC) infrastructure on a novel VLIW DSP processor (known as PAC DSP core) and its specific compilation and optimization design. The PAC DSP processor exceedingly utilized port-restricted, distinct partitioned register file structures in addition to the heterogeneous clustered datapath architecture to attain low power consumption and reduced die size; however, these architectural features lend new challenges to the compiler construction. As part of an effort to deal with the challenges of efficient code generation for PAC DSP, the register allocation scheme developed in this work and other retargeting optimization phases are also presented. Results indicated that our compiler development for PAC DSP could gives an early estimation of architecture performance so th...

• Type: Conference
• Year: 2005
• Where: LCPC
• Authors: Yung-Chia Lin, Chung-Lin Tang, Chung-Ju Wu, Ming-Yu Hung, Yi-Ping You, Ya-Chiao Moo, Sheng-Yuan Chen, Jenq Kuen Lee
• Keywords: Dsp Processors, LCPC 2005, PAC DSP, VLIW DSP Processors